.setting-btn {
    position: absolute;
    right: 0;
    top: 5px;
    margin: 10px;
    width: 50px;
    height: 50px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 26px;
    color: #969696;
    cursor: pointer;
    z-index: 9999;
}

.menu {
    width: 50px;
    position: absolute;
    right: 0;
    top: 50px;
    margin: 10px;
    box-shadow: 0 0 10px #CCC;
    border-radius: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    z-index: 9999;
    background: #FFF;

    >div {
        width: 42px;
        height: 50px;
        display: flex;
        justify-content: center;
        align-items: center;
        font-size: 26px;
        border-bottom: 1px solid #CCC;
        cursor: pointer;
    }

    .active {
        i {
            color: #389bee;
        }

    }
}

.he {
    i {
        transform: rotate(90deg);
    }
}


i {
    color: #404040;
    font-size: 30px;
}